Rui Ueyama e5416ec2d2 Add a fallback mechanism for undefined atom. ... In COFF, an undefined symbol can have up to one alternative name. If a symbol is resolved by its regular name, then it's linked normally. If a symbol is not found in any input files, all references to the regular name are resolved using the alternative name. If the alternative name is not found, it's a link error. This mechanism is called "weak externals". To support this mechanism, I added a new member function fallback() to undefined atom. If an undefined atom has the second name, fallback() returns a new undefined atom that should be used instead of the original one to resolve undefines. If it does not have the second name, the function returns nullptr. Differential Revision: http://llvm-reviews.chandlerc.com/D1550 llvm-svn: 190625		2013-09-12 19:14:05 +00:00
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CMakeLists.txt	Add library dependencies to the lld cmake build.	2012-12-04 21:09:04 +00:00
NativeFileFormat.h	Add a fallback mechanism for undefined atom.	2013-09-12 19:14:05 +00:00
ReaderNative.cpp	Add a fallback mechanism for undefined atom.	2013-09-12 19:14:05 +00:00
WriterNative.cpp	[lld] handle typeZeroFill atoms in ELF/Native/YAML	2013-08-23 20:03:21 +00:00